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发明授权
CN105452677B 刮片单元以及具有刮片单元的液压作业设备 有权

刮片单元以及具有刮片单元的液压作业设备
摘要：
本发明涉及一种刮片单元(44)和一种具有刮片单元(44)的液压作业设备(40)。刮片单元(44)特别是构造为用于液压作业设备的刮冰片，用于保护次级侧(54)免受在初级侧(52)上产生的环境影响，特别是用于保护引导结构和/或密封结构(42)，具有：保持环(46)，保持环基本上旋转对称地环绕纵轴线(20)构造并且具有用于容纳在壳体部件(14)上的接触分段(58)；初级刮片(48)，特别是外部刮片；以及次级刮片(50)，次级刮片相对于初级刮片(48)沿轴向朝向次级侧(54)的方向错开，其中，在初级刮片(48)上构造有初级唇片(74)，在次级刮片(50)上构造有次级唇片(88)，初级唇片(74)和次级唇片(88)在接合的状态下密封地接触所引导的滑动配对件(16)、特别是活塞杆的滑动面(19)，初级唇片(74)朝向初级侧(52)的方向呈凸缘状地突出并且在初级唇片的、在接合的状态下背向所引导的滑动配对件(16)的侧面上至少分段地朝向初级侧(52)的方向呈锥形变细，初级唇片(74)具有被设计用于贴靠在滑动面(19)上的接触面(76)。
摘要（英）：

The disclosure relates to a wiper unit and to a hydraulic working apparatus comprising a wiper unit. The wiper unit comprises a retaining ring, which is arranged in a basically rotationally symmetric fashion about a longitudinal axis and which comprises a contact portion for being received at a housing part, a primary wiper and a secondary wiper, which is axially spaced away from the primary wiper towards the secondary side, wherein a primary lip is formed at the primary wiper and a secondary lip is formed at the secondary wiper, wherein the primary lip and the secondary lip, in a mounted state, contact a sliding surface of a guided slide partner part in a sealing fashion, wherein the primary lip protrudes towards the primary side in a collar-like fashion and wherein the primary lip, at the side thereof facing away from the guided slide partner part in the mounted state, is at least sectionally conically tapered towards the primary side, and wherein the primary lip comprises a contact surface arranged for abutting the sliding surface.

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